Apparatus for use in erecting walls of blocks, bricks, or the like



Dec. 27, 1927.. 1,653,863

L... LIEDLER APPARATUS FOR USE IN ERECTING WALLS O1 BLOCKS, BRICKS. OR THE LIKE File .112. ,1925

in mm for Ludwig (6 per I .fF/fornef- Patented Dec. 27, 1927.

UNITED STATES 1,653,853 PATENT OFFICE 1 L'U'DWIG LIEDLER, OF MODLING, NEAR VIENNA, AUSTRIA.

APPARATUS FOR USE IN ER/ECTING JVAHILE, F BLOCKS, BRICKS, OR THE LIKE.

Application filed August 8, 1925, Serial No. 49,058, and in Austria July 12, 1924.

This invention relates to an apparatusfor use in erecting walls from stone blocks with the aid of vertically adjustable guide laths or ledges as stops or guides for the blocks,

and is constituted by a template enclosing the whole masonry in its plan or cross-section, both at the longitudinal sides and at the transverse sides. This template forms the guide for the stone blocks as well as the i casting mould for the rough plastermg, and

' can be pulled upwards or raised each t me to the heightof a layer of blocks. Another feature of the invention is the special shape of the template as well as the connectlon of template to a well known scaffolding or frame forming the stand for the mason, which frame is pulled upwards simultaneously with the template. The inventlon sub stantially differs from similar well known arrangements in enabling masonry of any desired cross-section to be erected as the template is adapted already before start ng the work, to all projecting and re-entering corners of the masonry and of the piers, and in that shape is used until the next offset 1s reached which is of smaller wall thickness. At this level the template is adapted to the new thickness of wall, and in this shape pulled up again layer by layer unt1l the next level. Moreover the apparatus according to the invention difiers from the well known constructions also by the fact that the template forms the well known gurde or stop for the blocks, and at the same time a casting mould for the rough plastering.

A construction of the apparatus according to the invention is illustrated by way of example in the accompanylng drawing in which Figure 1 is a perspective view of the template in use during building,

Figure 2 is an enlarged view of a part of the template,

Figure 3 shows the apparatus in elevation,

Figure 4 is a plan, and

Figures 5 and 6 show a mortar tank and mortar truck.

The template 8 shown in perspectivein 50 Figure 1, is made, to suit the cross-section of the masonry, from single laths which are secured together by nails, clips, brackets or the like. At suitable distances apart levelled uprights t are arranged with spaced markings on which the template is guided by suitable sleeves u or the like. The template s is provided at its upper edge facing the masonry, with guide ledges 7" which form guides for the blocks, and several distance ledges Z are arranged at suitable distances apart to engage directly with the frontfaces of the blocks already set. The height of the template 8 isv greater than that of a layer of blocks, for instance it is equal to three times the height of the layer. The distance of the inner faces and of the guide ledges 4" as well as of the distance ledges Z, from the template, corresponds to the thickness of the rough plastering. For the purpose of facilitating the work, the template a, and a scaffolding g constituting the stand for the mason, can be simultaneously. moved upwards, as shown in Figures 3 and i. The scafi'olding g is provided above the template .9 with a material supportiiig board, not shown in the drawing, and is guided at intervals of several meters for instance by rollers 0 on an upright n and carries jibs a to which the templates 3 are suspended. For the purpose of improving the supporting of the templates, a shackle or bracket 6 surrounds the upright 92 and is longitudinally adjust-able thereon. On the upper cross beam 9 of the framework k supporting the upright a, for instance a rope pulley i is mounted on which the scaffolding 9 together with the templates 8 can be raised by means of a hand wheel 7L. The templates 3 are preferably easily detachable from the frame or scaffolding g at w and can be raised also independently of the scaffolding g so that at the beginning of the work, only the templates need be pulled upwards layer by layer, and the coupling to the scaf folding frame is effected only when the progress of the masonry work necessitates an increase in the height of the stand for the workman. The upper edges of the template are preferably used as rails for a mortar truck to, on the back of which is provided a stripping off device for the mortar coming from the mortar trough m. The mortar trough m is provided at its lowest point with a hinged flap valve '0 which closes an outlet slot and is turned outwards when it is desired to use the mortar, with simultaneous movement of the trough in from the position shown in Figure 5. 1 The working of the apparatus is as folows:

The first two layers of stone blocks are laid in accordance with the desired cross work can begin. The blocks of the next layer are then placed against the guide ledges 1 thus eliminating the necessity of plumbing and levelling. After finishing a complete layer, the template is raised to the height of a layer, and the hollow space left below the guide'ledges ris filled with liquid coarse mortar, wheieupon the next layer of blocks is set. The time required for setting the next layer is sufficient to give the coarse plastering time forsetting or binding so that at the next raising and new filling ot the guide ledges r, the lowest layerol the plaster uncovered by the raising of the template, is at the same time smoothed. The recesses in the form of grooves left free from plastering on account of the distance ledges Z after the raising of the template, are used for checkingcorrectness of bonding, and are covered by hand for several layers simultaneously. The distance ledges Z, in addi tion to guiding theteniplates alongthe frontfaees of the blocks also control the proper bonding in spite of the coarse plaster put Having; now particularly described and ascertained the nature of my said invention and in What manner the same is to be per tormerhl declare that what I claim is:-- y

1. Apparatus for use in erecting walls of stone or like blocks and rough plaster, comprising a template entirely surroumling the horizontal cross-section of the wall being); constructed longitudiimlly and transversely of the wall,-and horizontal guide ledges mounted on the internal faces of the te1nplate to engage the hloclts.

2. Apparatus tor use in erecting walls of stone or like blocks and rough plaster, eoinprising a template entirely surrounding the horizoiual crosssect-ion oi the wall being constructed longitudinally and transversely of the wall, and spaced vertical ledges mounted on the inner faces of the template to provide spaces for the reception of the rough plaster. i

LUDVVIG LIEDLER. 

